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ntn_friclaw_linear_slip_weakening_no_healing_tmpl.hh
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Sun, Oct 20, 01:40
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rAKA akantu
ntn_friclaw_linear_slip_weakening_no_healing_tmpl.hh
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/**
* @file ntn_friclaw_linear_slip_weakening_no_healing_tmpl.hh
*
* @author David Simon Kammer <david.kammer@epfl.ch>
*
* @date creation: Tue Dec 02 2014
* @date last modification: Fri Feb 23 2018
*
* @brief implementation of linear slip weakening
*
* @section LICENSE
*
* Copyright (©) 2015-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
namespace
akantu
{
/* -------------------------------------------------------------------------- */
template
<
class
Regularisation
>
NTNFricLawLinearSlipWeakeningNoHealing
<
Regularisation
>::
NTNFricLawLinearSlipWeakeningNoHealing
(
NTNBaseContact
*
contact
,
const
FrictionID
&
id
,
const
MemoryID
&
memory_id
)
:
NTNFricLawLinearSlipWeakening
<
Regularisation
>
(
contact
,
id
,
memory_id
)
{
AKANTU_DEBUG_IN
();
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
template
<
class
Regularisation
>
void
NTNFricLawLinearSlipWeakeningNoHealing
<
Regularisation
>::
computeFrictionCoefficient
()
{
AKANTU_DEBUG_IN
();
// get arrays
const
SynchronizedArray
<
Real
>
&
slip
=
this
->
internalGetCumulativeSlip
();
UInt
nb_contact_nodes
=
this
->
contact
->
getNbContactNodes
();
for
(
UInt
n
=
0
;
n
<
nb_contact_nodes
;
++
n
)
{
if
(
slip
(
n
)
>=
this
->
d_c
(
n
))
{
this
->
mu
(
n
)
=
this
->
mu_k
(
n
);
}
else
{
// mu = mu_k + (1 - slip / Dc) * (mu_s - mu_k)
this
->
mu
(
n
)
=
this
->
mu_k
(
n
)
+
(
1
-
(
slip
(
n
)
/
this
->
d_c
(
n
)))
*
(
this
->
mu_s
(
n
)
-
this
->
mu_k
(
n
));
}
}
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
template
<
class
Regularisation
>
void
NTNFricLawLinearSlipWeakeningNoHealing
<
Regularisation
>::
printself
(
std
::
ostream
&
stream
,
int
indent
)
const
{
AKANTU_DEBUG_IN
();
std
::
string
space
;
for
(
Int
i
=
0
;
i
<
indent
;
i
++
,
space
+=
AKANTU_INDENT
)
;
stream
<<
space
<<
"NTNFricLawLinearSlipWeakeningNoHealing ["
<<
std
::
endl
;
NTNFricLawLinearSlipWeakening
<
Regularisation
>::
printself
(
stream
,
++
indent
);
stream
<<
space
<<
"]"
<<
std
::
endl
;
AKANTU_DEBUG_OUT
();
}
}
// namespace akantu
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